Stereo Setup without a Network?

[Snoopy8]

Just an update, we added an ethernet cable between the speakers and that seems to have fixed the dropouts for now.

Good to know that the Reactors are smart enough to detect the Ethernet cable, even though they connected intially with WiFi.

You should download a phone app eg. WiFi analyser on Android, to measure how strong the signal is and whether there are competing signals on the same channels 3, 7, 11. Using any other channel can cause more problems because it can be interfered more.